Overboot

ABSTRACT

An overboot comprising a sleeve-like leg and an inner sole of thin flexible rubber fabric and an outer sole of rubber, having a peripheral marginal portion which covers the seam between the leg and the inner sole, said overboot being adapted to be folded to a small package.

United States Patent [191 Bohmann 1 Jan. 30, 1973 1 OVERBOOT [75]Inventor: Otto Alwin Ludwig Bohmann,

Oosterbeek, Netherlands [73] Assignee: N. V. Rubberfabriek Vredestein,

The Hague, Netherlands [22] Filed: April 12, 1971 [21] Appl. No.:133,160

[30] Foreign Application Priority Data April 21, 1970 Netherlands..7005735 [52] US. Cl ..36/7.3 [51] Int. Cl. ..A43b 1/10 [58] Field ofSearch ..36/7.3, 4, 7.1, 50, 9 R

[56] References Cited UNITED STATES PATENTS 2,585,260 2/1952 McGarry..36/7.3

2,435,485 2/1948 Wheaton ..36/7.3 2,603,889 7/1952 Lahnstein et al...36/50 3,416,174 12/1968 Novitske ..36/9 R Primary ExaminerPatrick'D.Lawson Att0rney-Stevens, Davis, Miller'& Mosher [57] ABSTRACT Anoverboot comprising a sleeve-like leg and an inner sole of thin flexiblerubber fabric and an outer sole of rubber, having a peripheral marginalportion which covers the seam between the leg and the inner sole, saidoverboot being adapted to be folded to a small package.

2 Claims, 4 Drawing Figures OVERBOOT This invention relates to anoverboot comprising a sleeve-like or tubular leg, an insole and a treadof thin flexible rubber fabric or cloth, the seams of which between theleg and the insole are covered by the upturned marginal portion of thetread which marginal portion is vulcanized to the leg, the or each seamof the leg being covered by a rubber strip vulcanized thereto, saidoverboot being provided with closing elements.

Such an overboot presents the advantage that it may be folded to a smallpackage so that it requires little room and may easily be carried alongand yet may easily and rapidly be put on over shoewear. Such overbootsare particularly suitable for protecting wearers against strong, liquidor gaseous chemical substances. As they consist of thin sheetlikematerial they are small in weight so that wearing these overboots is nottiring.

An object of the invention overboots is to inconvenience wearers thereofas little as possible; that they can be firmly attached to the footwear;and that the risk of being damaged when used is as small as possible.

This is accomplished with the overboot according to the invention inthat there are provided strips at both sides of the leg, said stripsbeing secured to the leg over part of their width, the portions of saidstrips which are not secured to the leg being provided with the closingelements. The closing elements fastened in or to said strips may haveany shape. They may consist for example of buckles adapted to be rapidlyopened and closed, of a string or band laced through eyelets provided inthe strips etc. The loose portions of the strips provided on the legpreferably are of such width that the leg material, after the boot hasbeen put on, does not abut against the footwear. Clothes may beaccommodated between said strips so that, after the closing of theclosing elements, the footwear fits well over the clothes.

A preferred embodiment of the overboot according to the invention ischaracterized in that the front portion of the leg is provided with areinforcing strip vulcanized thereto. When the overboot has been put on,this reinforcing strip closes the gap between the two strips provided onthe leg and consequently the front of the overboot is considerablyreinforced.

It is preferred, according to the invention, to provide at the locationof the toe-cap a lip forming part of a plate-shaped cap reinforcementvulcanized to the toecap, said lip comprising a closing element. Thisclosing element is preferably embodied such as to co-operate with theclosing elements of the strips.

According to the invention the strips provided at both sides of the legand serving to close the overboot may have a curved shape, the lowerends of the strips extending toward the lip projecting from .thetoe-cap. If a string or band is used which is laced through eyelets orapertures in the strips and the lip also has an eyelet or aperture, thestrips may have such a shape that the lowermost eyelet or aperture ofeach strip is located at The invention will be further explained belowwith reference to the accompanying drawings showing by way of example anembodiment of the overboot according to the invention.

The drawings show in FIG. 1 a side view of the overboot;

FIG. 2 a front view of said overboot;

FIG. 3 diagrammatically a longitudinal section through the lower part ofsaid overboot, and

FIG. 4 a side view of the overboot when in use.

The overboot 1 shown in the drawings comprises a leg 2, an outsole ortread 3 and an insole 4 which are manufactured from so-called rubber orcanvas fabric or cloth. The leg 2 preferably consists of one singlepiece of fabric the edge seams of which are situated at the front of theoverboot and there are interconnected by a strip 5 likewise consistingof rubber fabric, said strip also serving as a reinforcing strip.

The insole 4 is connected at its peripheral marginal portion by a seam6, formed by marginal portions of said insole and the lower marginalportion of the leg. The thread 3 is dimensioned such that the peripheralmarginal portion thereof covers the seam 6 between the leg and theinsole 4.

The leg 2 is provided at both sides with a strip 7 of such curved shapethat its front portion extends in the direction of the toe-cap 8 of theoverboot 1. Each strip 7 is fastened to the leg 2 along a portion 9 ofthe width of said strip. In the portions 10 which are not secured to theleg there are provided eyelets or apertures 11 for a string or band 12.

The toe-cap 8 of the overboot has a cap reinforcement 13 likewiseconsisting of rubber fabric. Said cap reinforcement 13 has a lip 14 inwhich there is also provided an eyelet or aperture 15 for the string orband 12. This eyelet or aperture 15 is situated at the same level as thetwo lowermost apertures I l of the strips 7.

As is apparent from FIG. 4 the portion of the leg 2 extending beyond thestrips 7 in FIG. 1 is located between both strips when the overboot isin use, the reinforcing strip 5 closing the gap between said strips. Thestring or band 12 thereby passes from the eyelet or aperture 15 in thelip 14 of the toe-cap reinforcement 13 through the eyelets or apertures11 of both strips 7, and, when the overboot is too large, the frontportion of the overboot is drawn against the front portion of the treadof the wearers shoe. Consequently said overboot is firmly positioned anddoes not'cause any difficulties when worn. It is convenient in use as anoverboot and a size corresponding with that of the footwear so thatoverboots of one single size can be used.

The overboot is manufactured on a last or mould, all parts of theoverboot being placed on the last or mould in preferably non-vulcanizedcondition and being subembodiment described above and shown byway ofexample in the drawings, but that it may be modified in many wayswithout departing from the scope of the invention. The leg may, forexample, consist of two or more parts instead of one single part. Inthat case all seams between said parts are covered with sealing orreinforcing strips. If desired one could also have the edge portions ofsaid parts overlap one another. Instead of eyelets one may also usehooks for the provision of the string or band. Also other closingelements may be used, if required.

lclaim:

1. An overboot comprising a sleeve-like leg, an insole and a tread ofthin flexible rubber fabric, the seams of which between the leg and theinsole are covered by the upturned marginal portion of the tread saidmarginal portion being vulcanized to the leg, each seam of the leg beingcovered by a rubber strip vulcanized thereto, strips at both sides ofthe leg, said strips being secured to the leg over part of their width,the outer portion of said strips being provided with closing elements, alip on the toe-cap, said lip forming partvof a plate-shaped capreinforcement vulcanized to the toecap, said lip having a closingelement.

2. An overboot comprising a sleeve-like leg, an insole and a tread ofthin flexible rubber fabric, the seams of which between the leg and theinsole are covered by the upturned marginal portion of the tread whichmarginal portion-is vulcanized to the leg, each seam of the leg beingcovered by a rubber strip vulcanized thereto, said overboot beingprovided with closing elements, strips being provided at both sides ofthe leg, said strips being secured to the leg over part of their width,the outer portion of said strips being provided with the closingelements, the toe-cap being provided with a lip, the strips provided atboth sides of the leg and serving to close the overboot having a curvedshape, the lower ends of the strips extending towards the lip projectingfrom the toe-cap.

1. An overboot comprising a sleeve-like leg, an insole and a tread ofthin flexible rubber fabric, the seams of which between the leg and theinsole are covered by the upturned marginal portion of the tread saidmarginal portion being vulcanized to the leg, each seam of the leg beingcovered by a rubber strip vulcanized thereto, strips at both sides ofthe leg, said strips being secured to the leg over part of their width,the outer portion of said strips being provided with closing elements, alip on the toe-cap, said lip forming part of a plate-shaped capreinforcement vulcanized to the toe-cap, said lip having a closingelement.
 1. An overboot comprising a sleeve-like leg, an insole and atread of thin flexible rubber fabric, the seams of which between the legand the insole are covered by the upturned marginal portion of the treadsaid marginal portion being vulcanized to the leg, each seam of the legbeing covered by a rubber strip vulcanized thereto, strips at both sidesof the leg, said strips being secured to the leg over part of theirwidth, the outer portion of said strips being provided with closingelements, a lip on the toe-cap, said lip forming part of a plate-shapedcap reinforcement vulcanized to the toe-cap, said lip having a closingelement.